bash: prepare for a package version including a code-signed exe
bash: prepare for a package version including a code-signed exe

We just changed the package definition to allow for code-signing the
included `bash.exe`. Let's release a new package with this.

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>

git-for-windows/MSYS2-packages,git-for-windows/MSYS2-packages,dscho/MSYS2-packages,git-for-windows/MSYS2-packages,dscho/MSYS2-packages,dscho/MSYS2-packages,git-for-windows/MSYS2-packages,dscho/MSYS2-packages